The result of sucking on a milf's breats after she has had a baby. Similar to the Milk Mustache but much classier.

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"Wow that was some great sex, can you pass me a towel I need to wipe off my milf mustache"
by BarryB. September 18, 2009
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When a hot MILF gives you head and you blow your load on her upper lip.
She got me there and at the last second pulled off.... total MILF mustache!
by QAnont August 25, 2020
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